We have found that there are now several great places to eat in the area nearby at Victoria Gardens.
Trouble with going to lunch outside the venue either day during the show is the no in-out parking if you've parked at the convention center. Only those who have hotel parking will be able to participate.
I think the BYO steamtrack lunch could be a good idea, I just wish we had a better selection of lunch choices there at the venue.
I know the BEST place for RIBS out there, at "Lucilles" in Victoria Gardens, even if we dont go as a group, its worth a trip if you like ribs, this place is outstanding, just be sure to call ahead for reservations as the wait to get into the place on a weekend can be downright painfull!
In the same place theres a great seafood place, Kings, a great italian place, Sisleys, a Cheesecake Factory, and other places so finding something thats appetizing is not a problem there, but it can get crowded at night.